Our ears all look different. Turns out they hear differently, too. Nura Headphones are the first cans to take this into account. Using a microphone to measure both the tones going in and coming out of your ear canal, they adjust the sound automatically to match your hearing. Helping things along is a novel design that uses an in-ear driver to handle highs, and an over-ear cup with a bass driver, letting each note and tone breathe while also doubling up on noise isolation. They're powered by a digital connection to your device, so there's no battery to keep charged, and since the sound is custom tailored, you can leave the volume lower and save your hearing at the same time.

Blocking out external noises is one of the best ways to increase your enjoyment of music and movies. So is keeping the sound from your headphones in your ears. Normal Suit Headphones accomplish both with custom-fitted "dots" made from soft silicone that ensure an ideal seal. A five-way articulated design allows the phones to adjust to your body even further, with an arm to help keep them in place during activity and integrated USB that can plug into pretty much any open port for charging. Available in black or brown hand-stitched Napa leather, they offer eight hours of battery life and are also available in a silicone Sport edition.

Forget powders, pills, or shots — the fastest, most reliable way to boost your athletic performance might be inside your skull. The Halo Sport Neuropriming Headset uses pulses of energy to improve your training. Called neuropriming, it lets your motor cortex send stronger, more easily read signals to your muscles, so more fibers are activated with each rep, and strength is gained faster. Used in conjunction with specially designed workouts, it can also help with the learning and sharpening of skills like swings, kicks, and throws. It connects to your phone wirelessly, and also works as a pair of Bluetooth headphones, so you don't need to take them off once the priming is done and training begins.

We spend about a third of our life sleeping, so the mattress you sleep on every night is incredibly important. Make sure you get the right one by trying out a Casper. This USA-made mattress is made up of multiple layers of foam, including one for support and pressure relief, and one to make sure you don't get too hot. It's all wrapped up in a durable woven cover, and shipped right to your door in a box that's easy to maneuver into even the smallest abodes. You get 100 nights to try it out, can return it for free if you're not satisfied, but if you are (and you probably will be), you can upgrade even further by grabbing some of the company's soft Supima cotton sheets and dual-layer pillows.

We spend on average 7.5 hours a day staring at a screen, and our eyes are slowly paying the consequences. Founded by former analysts, Felix Gray makes the best of the situation. Available in non-Rx and reading options, their clear lens filters the most harmful wavelengths of blue light and eliminates glare to combat eyestrain and headaches. They offer multiple frames handcrafted from premium Italian acetate to suit all face shapes and personal styles.

The Fender name is synonymous with quality guitars. And now, the trusted instrument makers are bringing that same quality and attention to detail to the world or earphones with these Fender FXA7 Pro Earphones. The housings were 3D printed using scans of thousands of ears — making each pair feel like a custom fit. And the sound quality is top notch as well, with a pair of balanced armature tweeters and their patented Hybrid-Dynamic tuned Balanced Armature Array. Available in metallic gold or metallic black, they arrive in a deluxe carrying case with SureSeal tips, a cleaning tool, and cable.

Many of us wear headphones for a good portion of the day. So why not have them do more than just play music? Leveraging the tech used in the company's more traditional wearables, Misfit Specter Activity Tracking Headphones keep tabs on your steps, distance covered, calories, and sleep duration/quality, all while pulling double-duty as personal speakers. Despite their expanded functionality, they don't skimp on the sound, with dual drivers for richer, clearer audio, noise isolation technology to keep external sounds at bay, and multiple microphones to eliminate ambient noise when talking on the phone.